A new combination in Brachygasterina Macquart (Diptera, Muscidae)

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A new combination in Brachygasterina Macquart (Diptera, Muscidae)¹

Elaine Della Giustina Soares; Claudio José Barros de Carvalho

Departamento de Zoologia, Universidade Federal do Paraná. Caixa Postal, 19020, Curitiba, 81.531-980, Paraná, Brazil. CNPq fellow. E-mail: [e-mail]

ABSTRACT

A new combination is proposed: Brachygasterina valdiviensis (Pamplona & Couri, 2000) comb. nov., formerly in Palpibracus Rondani, 1863. Its affinities with a closely related species B. violaceiventris Macquart, 1851 are discussed.

Keywords:Brachygasterina; new combination; Palpibracus; taxonomy.

RESUMO

Nova combinação em Brachygasterina Macquart (Diptera, Muscidae). É proposta uma nova combinação, Brachygasterina valdiviensis (Pamplona & Couri, 2000) comb. nov., anteriormente alocada em Palpibracus Rondani, 1863. São indicadas suas afinidades com B. violaceiventris Macquart, 1851, espécie estreitamente relacionada.

Palavras-Chave:Brachygasterina; nova combinação; Palpibracus; taxonomia.

During the study of the metallic blue species of Palpibracus Rondani, 1863, the following characters were observed in Palpibracus valdiviensis Pamplona & Couri, 2000: flagellomere strongly dilated, palpus dilated, and notopleura covered with some cilia. These characters are found in Brachygasterina Macquart, 1851, and the strongly dilated antenna is synapomorphic for this genus (CARVALHO 1989; CARVALHO & COURI 2002). Therefore, this species is herein transferred from Palpibracus to Brachygasterina.

Brachygasterina valdiviensis (Pamplona & Couri, 2000)

comb. nov.

Palpibracus valdiviensis Pamplona & Couri, 2000: 1 (description); Carvalho & Couri, 2002: 83 (cited); Carvalho et al., 2003: 268 (cited).

Affinities. Only the female is known. The species is closely related to Brachygasterina violaceiventris Macquart, 1851, with no differences in external morphology and only distinguishable by characters from female terminalia: two spermathecae in B. valdiviensis comb. nov. and three in B. violaceiventris. Sternite 6 is divided into two parts, the distance between these two parts is greater in B. valdiviensis than in B. violaceiventris. The length of sternite 8 in B. valdiviensis is one third of the segment length while in B. violaceiventris is a half (see CARVALHO 1989; PAMPLONA & COURI 2000).

Distribution. Known only from Valdivia, Chile.

Material examined. Holotype, female, labelled as follow: CHILE, Valdivia, 39º 48'' Sur [south], 73º 15'' W [collected by Luis Figueroa], R-R-Sm [R = rat, R = rural, Sm = shadow], 29/VIII/1997 (MNRJ). Paratypes, females: same locality and collector as holotype: P-S-Sol [P = fish, S = wild, Sol = sunlight], 25/VIII/97 (MNRJ/7719); P-S-Sm, 10/VIII/1997(MNRJ/7717).

Acknowledgements. We thank the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), for the support provided by grants to EDGS (number 131062/2002-6) and CJBC (number 304148/2002-4). We would like to thank Márcia Souto Couri of the Museu Nacional, Rio de Janeiro (MNRJ) for the loan of the type-material.

Received 05.XI.2003; accepted 15.V.2004

• CARVALHO, C. J. B. de 1989. Revisão dos gêneros sul-americanos: Brachygasterina Macquart e Correntosia Malloch (Diptera, Muscidae). Revista Brasileira de Zoologia 6(3): 473-484.
• CARVALHO, C. J. B. DE; M. BORTOLANZA; M. C. C. DA SILVA & E. D. G. Soares. 2003. Distributional patterns of the Neotropical Muscidae (Diptera), p. 263-274. In: J. J. MORRONE, & J. LLORENTE B. (eds.). Una perspectiva Latinoamericana de la Biogeografía México, Las Prensas de Ciencia, Facultad de Ciencias, Universidad Autónoma de México, 307 p.
• CARVALHO, C. J. B. DE & M. S. COURI, 2002. Part I. Basal groups, p. 17-132. In: C. J. B. DE CARVALHO (ed.). Muscidae (Diptera) of the Neotropical Region: taxonomy Curitiba, Editora Universidade Federal do Paraná, 287 p.
• PAMPLONA, D. M. & M. S. COURI, 2000. Espécie nova de Palpibracus Rondani (Diptera, Muscidae, Azeliinae, Reinwardtiini). Boletim do Museu Nacional do Rio de Janeiro, n.s., Zoologia, 431: 1-4.

1

Contribution number 1460 of the Departamento de Zoologia da Universidade Federal do Paraná.

Publication Dates

• Publication in this collection
  15 Oct 2004
• Date of issue
  2004

History

• Accepted
  15 May 2004
• Received
  05 Sept 2003